Issue #6 (TUI startup error visibility): restructure run_tui lifecycle so pre-App.run() failures land on real stderr instead of getting eaten by the alt-screen teardown. New _resolve_then_run async helper opens the AsyncClient via async-with, does pre-flight session resolution, routes AgentNotFound / SessionApiFailed / network errors to sys.stderr (verbatim same labels + exit codes as cli._amain), then constructs RatatoskrApp with pre-resolved state and awaits app.run_async(). RatatoskrApp.__init__ signature widens to (args, *, session_id, agent_id, client) — all three required. on_mount narrows to identity-widget population; on_unmount becomes a no-op (client lifetime owned by run_tui's async-with). Issue #5 (--end-user-id for per-end-user agents): sessions.create_session gains keyword-only end_user_id kwarg with PRE-003 non-empty assertion; ParsedArgs.end_user_id field added (default None); --end-user-id flag with non-empty validation; _amain + _resolve_then_run thread it to their create_session calls. RATATOSKR_END_USER_ID env-var fallback (flag > env > None) per the post-2026-05-23 amendment; env.sh (gitignored) ships "ratatoskr-tui" as project-stable partition default. Worldtree-dev consumer-API follow-up (althing 01KSBARG2B8M): User-Agent header added (ratatoskr/<version> (vh@phasefinal.com), version pulled via importlib.metadata) to both AsyncClient constructions so server logs can distinguish ratatoskr traffic from other consumers. Volva code-review (2 rounds on #6) found 8 test-precision gaps + 1 PRE assertion drift, all Category 1 fixed: missing PRE-001 at _resolve_then_run entry; Rule separator assertions on markdown render; RichLog-write spy on empty submit; input-cleared + no-new-worker on cancelling busy; worker.cancel observation on three force-exit paths; on_unmount-no-close focused test (the prior client-lifetime test patched run_async so on_unmount was never exercised); happy --new resolve test verifying POST count + identity propagation. Issues #2/#3/#4/#5 contracts amended in-place to reflect: - create_session widened (PRE-003, body construction step, body shape POST) - ParsedArgs description + _parse_args STEPS + _amain create_session call + new TESTS for end_user_id + env-var fallback - _resolve_then_run STEPS + new TEST entries; on_mount narrowed; INV-007 amended for new client ownership - Post-#6 adjustment note on issue #5 (_resolve_then_run replaces on_mount as the threading site since #6 moved session resolution out of the alt-screen) 188 tests GREEN; ruff clean. Bumps to v0.1.0 — first minor release, the load-bearing reason is RatatoskrApp.__init__'s breaking signature change (additive end_user_id alone wouldn't have triggered a minor pre-v1.x). Files Gitea issues #9 (spec-pin refresh v0.19.0 → v0.22.1), #10 (track Worldtree #196 subject:{type,id} migration), #11 (AdminEvents pane auth prerequisite admin.events.read). Infra-ops pinged via althing for agents.call:lofn scope add (broker pattern; they forwarded to worldtree-dev because personal Worldtree exposes no public scope-mutation endpoint).
Ratatoskr
A Worldtree Conversation API debug TUI. Runs up and down Worldtree's API surface — sessions, turns, persona, tools, admin events, Bifrost state — carrying messages between layers. Like the squirrel.
The product is the observability surface; chat is the input mechanism. Devs run Ratatoskr against a local Worldtree to watch a turn flow through every layer of the system, side-by-side, in one terminal.
Status
v0 scaffold. Design locked; implementation hasn't started. The dev team owns the implementation pass.
Read in this order
docs/design-brief.md— the locked design. Read this first. Every architectural decision is recorded with its rationale, the alternatives considered, and (where relevant) the operator's lock-in moment.docs/SPEC-PIN.md— what Worldtree spec version Ratatoskr is built against, where the vendored snapshot lives, and how to bump the pin.docs/conversation-api-spec.md— the vendored Worldtree spec snapshot. Read this to understand the API surface Ratatoskr consumes. Do not import anything from a Worldtree checkout — the boundary is the spec, not the code. Seedocs/design-brief.md§2.CLAUDE.md— Claude Code conventions for this repo (mostly inherited from the Corviduo template).persistent-memory.md— durable intent across context resets. Update as decisions and state evolve.
Quickstart
# 1. Environment
uv venv && source .venv/bin/activate
uv pip install -e ".[dev]"
# 2. Verify the spec pin
cat docs/SPEC-PIN.md # documented Worldtree SHA + bump procedure
# 3. Tests (none yet; scaffold only)
uv run pytest
# 4. Run against a local Worldtree (once implementation lands)
# Worldtree must be running: python -m core.conversation_api
ratatoskr --agent mimir
What this repo is NOT
- NOT a polished consumer for Worldtree's end-users — that's the web app.
- NOT a Worldtree admin tool — admin CLI is separate (
sessions_cli.pylives in Worldtree). - NOT a featuretracking shadow of the web app — when the Conversation API surface grows, Ratatoskr does not necessarily grow with it.
- NOT a remote-Worldtree debug client — file-tail surfaces (persona log, server log) assume local-dev posture.
The full negative-clause list lives in docs/design-brief.md §6.
Boundary rule
Ratatoskr depends on three things only:
httpx+httpx-sse(network layer)textual(TUI framework)- Worldtree's published Conversation API spec at the pinned SHA
Hard rule: no imports from a Worldtree checkout. No core.* imports,
no from worldtree.*, no shared models, no submodule of Worldtree. The
spec is the entire surface. Boundary smoke test at tests/test_no_worldtree_imports.py
enforces this in CI.
Version-skew strategy
The dev team is decoupled from Worldtree's dev team. To detect drift when Worldtree changes the API:
- Spec-version pin in
pyproject.toml(worldtree-spec-rev). Bump explicitly; bumps are a tracked action. - Recorded-SSE snapshot tests at
tests/snapshots/. Captured against a live Worldtree; replayed in CI. Re-record after every pin bump. - Conformance smoke test — boots Worldtree via Docker compose in CI, runs a one-turn happy path. Catches integration-level drift.
See docs/SPEC-PIN.md for the bump procedure.
Consumer-side discoveries
If you find a spec gap, ambiguity, or missing-but-needed endpoint while working on Ratatoskr: route the discovery back to worldtree-dev via althing rather than via PR on Worldtree directly. The separate-team boundary is intentional and helps catch spec gaps that an in-tree consumer would paper over.
Related repos
- Worldtree — the API Ratatoskr consumes
- brokkr-smithy — authored this design brief
- Skaldsong — another Worldtree API consumer (Python; render-and-aggregate pattern)
- mead-hall — another Worldtree API consumer (TypeScript; server-side broker)